*{
    margin: 0;
    padding: 0;
}
nav{
    width: 100%;
    background: #e9ecef;
}
nav h2{
    font-size: 48px;
    text-align: center;
    padding-top: 72px;
    font-weight: 300;
}
nav p{
    text-align: center;
    padding-bottom: 72px;
}
#n,#a{
    padding: 4px 74px 4px 6px;
    border-radius: 3px;
    border:1px solid #e9ecef;
}
#s{
    padding: 4px 202px 4px 6px;
    border-radius: 3px;
    border:1px solid #e9ecef;
}
#btn{
    padding: 4px 105px 4px 105px;
    background: #007bff;
    border-radius: 3px;
    border:1px solid #007bff;
    color:#fff;
}
footer h2{
    padding-top: 68px;
}